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Ovim diplomskim radom nastoji se prikazati Markowitzev model optimizacije portfelja na hrvatskom tržištu kapitala. U radu je ukratko opisan pojam tržišta kapitala, te dionice i obveznice kao njegovi glavni instrumenti. Dan je povijesni pregled poslovanja Zagrebačke burze, kao centralnog mjesta na kojemu se susreću ponuda i potražnja za vrijednosnicama u Republici Hrvatskoj. Prikazane su osnovne teorijske postavke Markowitzevog modela, kao i najizraženije manjkavosti koje se vežu uz njegovu primjenu. Analiza je provedena na dionicama i obveznicama, za koje su prikupljeni podaci u razdoblju od 01.siječnja 2009. godine do 30.travnja 2017.godine. Temeljem prikupljenih podataka izvršena je optimizacija dioničkog, obvezničkog i mješovitog portfelja., This graduate thesis aims to present Markowitz's portfolio optimization model on the Croatian capital market. The paper briefly describes the concept of the capital market, as well as stocks and bonds as its main instruments. There has been given a historical review of the Zagreb Stock Exchange's business, as the central place where the supply and demand for securities in the Republic of Croatia are met. The basic theoretical assumptions of Markowitz's model are presented, as well as the most significant deficiencies that bind to its application. The analysis was carried out on stocks and bonds, for which data were collected in the period between January 1, 2009 and April 30, 2017. Based on the collected data, the optimization of the stock, bond and mixed portfolio was carried out.

Proceedings contains articles presented at Conference divided into sections: open lecture (1), chemical analysis and synthesis (3), chemical and biochemical engineering (8), food technology and biotechnology (8), medical chemistry and pharmacy (3), environmental protection (11) and meeting of young chemists (2).

Garlic (Allium sativum L.) shows numerous medicinal properties and beneficial effects in preventing many diseases. Garlic cloves contains many biologically active substances, including minerals, vitamins, amino acids and polyphenolic compounds with significant antioxidant activity. On the nutritional properties and content of bioactive compounds strong influence show following factors: climatic conditions, ecotype and cultivation methods. Therefore, the main objective of this study was to determine the differences in the chemical and nutritional composition of garlic cloves from organic and conventional cultivation. Following chemical parameters were analyzed: the dry matter content (%), total soluble content (%) by, refractometer (Mettler Toledo Refracto 30PX, Switzerland) total acid content (%) by potentiometric titration, pH value by digital pH meter (Mettler Toledo SevenMulti, Switzerland) the vitamin C content (mg/100 g fresh matter) by titration with 2, 6- dichlorindophenol, total phenol content (total flavonoids and non-flavonoids) (mg/L) by Folin-Ciocalteu method and antioxidant capacity by ABTS method. Total phenol content was determined only in garlic samples from organic cultivation while in the analyzed garlic ecotypes from conventional cultivation content of total phenols, flavonoids and non-flavonoids was not determined. A significant difference between garlic from organic and conventional cultivation were determined for the analyzed bioactive compounds (vitamin C, total phenols). In the garlic sample from organic cultivation significantly higher value of vitamin C was determined. In a garlic sample with significantly higher content of total phenolic compounds (EU2) also significantly higher antioxidant capacity was determined.

Češnjak (Allium sativum L.) je jedna od najpopularnijih vrsta iz porodice lukova koja sadrži brojne biološki aktivne tvari, uključujući minerale, vitamine, aminokiseline i polifenolne spojeve koji pokazuju značajnu antioksidacijsku aktivnost. Na nutritivna svojstva i sadržaj bioaktivnih komponenata utječu klimatski uvjeti, ekotip i način uzgoja, a češnjak iz ekološkog uzgoja smatra se nutritivno kvalitetnijim u odnosu na češnjak iz konvencionalnog uzgoja. Glavni cilj ovog diplomskog rada bio je utvrditi razlike u kemijskom i nutritivnom sastavu lukovica češnjaka porijeklom iz ekološkog i konvencionalnog uzgoja. U svrhu utvrđivanja nutritivnog sastava provedene su sljedeće analize: sadržaj suhe tvari (%), sadržaj topljive suhe tvari (%), sadržaj ukupnih kiselina (%), pH- vrijednost, sadržaj vitamina C (mg/100 g svježe tvari), sadržaj ukupnih fenola: flavonoida i neflavonoida (mg GAE/100 g svježe tvari) i antioksidacijski kapacitet. Temeljem dobivenih rezultata može se zaključiti kako češnjak iz ekološkog uzgoja pokazuje značajno veću nutirtivnu kvalitetu posebice u sadržaju fenolnih spojeva i vitamina C. Garlic (Allium sativum L.) is one of the most popular species of onions which contains many biologically active substances including minerals, vitamins, amino acids, and polyphenolic compounds that exhibit significant antioxidant activity. The nutritional properties and the content of bioactive components are influenced by climatic conditions, ecotype and production method, and ecological garlic is considered nutritionally superior than garlic from conventional production. The main objective of this thesis was to analyze the nutritional composition of garlic bulbs which is orginating from ecological and conventionalproduction. Following chemical analysis, in purpose of determining nutritional composition, was conducted: dry matter content (%), soluble dry matter content (%), total acidity content (%), pH-value, vitamin C content (mg/100g), total phenols content: flavonoids and noflavonoids (mgGAE/100 g) and antioxidant capacity. Based on the obtained results it can be concluded that garlic which is orginating from ecological breeding shows a significantly higher nutritional quality, especially in the content of phenolic compounds and vitamin C.